The Missouri (MO) state sales tax rate is currently 4.225%. Depending on local municipalities, the total tax rate can be as high as 9.6%.

Missouri allows all the state and local sales taxes to be remitted together at the state level. Once the seller remits sales tax to the Department of Revenue, the department will then distribute the local sales taxes to the cities, counties and districts.

Missouri charges what is called a Transactional Privilege Tax (TPT), considered a sales tax on all sellers for the privilege of engaging in business in the state of Missouri. So additional fees on a sale, such as administrative fees for a service such as auction fees, can be considered taxable.

Avalara Sales and Use Tax Products for Missouri

AvaTax – AvaTax is a powerful, online sales tax compliance solution that provides all businesses with a level of sales tax automation that until now has been available only to Fortune 500 companies. AvaTax’s transaction-based service model and seamless integration into business applications gives you rapid access to all jurisdiction assignments and real-time sales tax calculations. Cutting-edge technologies and superior processing logic can manage even the most complicated tax issues, such as situs, nexus, tax tiers, tax holidays, exemptions, certificate management and product taxability rules.

TrustFile - Avalara TrustFile provides detailed sales tax reporting for online sellers. Allowing businesses to know exactly where, when and how much to file. Ecommerce business owners can use TrustFile to determine whether or not they are collecting the right amount of sales tax in each individual state, and then store a record of their sales tax history securely in the cloud for free.

Missouri Department of Revenue